Shawn Johnson and Andrew East may be former professional athletes, but Special Forces: World’s Toughest Test was far from a cake walk for the couple.

“We’re very used to, I don’t want to say physical pain, but coming from elite athletics, we know how to deal with that,” Johnson tells TV Insider. “It’s an expectation. The mental side was way different than anything I think Andrew or I had ever dealt with before, so that was new.”

Originally published on tvinsider.com, part of the BLOX Digital Content Exchange.